13.7 Keyboard Macro Registers

If you need to execute a keyboard macro (see Keyboard Macros)
frequently, it is more convenient to put it in a register or save it
(see Save Keyboard Macro). C-x C-k x r
(kmacro-to-register) stores the last keyboard macro in register
r.

To execute the keyboard macro in register r, type C-x r j
r. (This is the same command used to jump to a position or
restore a frameset.)